<template>
    <div class="test">这是APP页面{{a}}</div>
</template>

<script lang="ts">
import Vue from  'vue'
import Component from 'vue-class-component'

@Component
export default class App extends Vue {
    a: number = 1

    mounted () {
    }
}
</script>

<style>
    .test{
        font-size: 58px;
    }
</style>